Finding the Fourth Proportional to 1,123.62, 1,685.43 and 301.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.62 : 1,685.43 = 301.89 : x
2. Step 2: Convert to fraction form
   1,123.62/1,685.43 = 301.89/x
3. Step 3: Cross multiply
   1,123.62x = 1,685.43 × 301.89
4. Step 4: Simplify right side
   1,123.62x = 508,814.46
5. Step 5: Solve for x
   x = 508,814.46/1,123.62
6. Step 6: Final answer
   x = 452.84